Vehicle wheel-rim.



J. H. WAGENHOHST.

. VEHICLE WHEEL RIM.

APPLICATloN FILED JUNE 10. 1912.

l l 60,225., Patented Nov. 16, 1915.

2 SHEETS--SHEET l.

l. H. WAGENHORST..

VEHICLE WHEEL HIM.

APPLICATION FILEDJUNE10.1912.

1,160,225, Patented Nov. 16, 1915.

2 SHEETS-SHEET 2.

IIHIII??I E ,im

` the rim has been made removable in order' tires.

detachable or simply fQ-D rims.

. Similaires ianranr ormoni.

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rwo-rirrns fro 'rise n r. Goonnien censeur, or New venir, n. v.; a oonronii rioiv or new Yoan, oitn-rrrrn To 'rein Goonrnan 'rien a nonnen ooivirniir, or

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A. GRPORATION 0F QHIO, AND ONE-FIFTH'TO THE UNITED STTES TIRE COMPANY, @E NEW YORK, N. Y., A QGRPRATION OF NEW' YORK.

viiiiicnn Wanna-iena. .y

Speccation of Letters Patent.

.application i'iled June 10, l. Serial ille. 792,856.

To all whom t may conce/rn.'

' Beit known that I, JAMES II. WAGEN HORST, a citizen of the United States, residing in the city of Akron, county of Summit, and State of Ohio,- have invented certain new and useful Improvements -in `Vehicle Wheel-Rims, of which the followingy is a speciiication.

- 'Ihis invention relates to improvements in lvehicle rims of the class designed tojcarry-l pneumatic or other resilient tires. `Itims for this purpose usually comprise a channel adapted to be secured either lperma-` nently or removably upon a vehiclewheel,l

vthe base of vthe resilient tire .being received in this channel and held upon the wheel by the anges thereof. In one Well-known class of rims `of this kind one of the flanges of to facilitate the applicationof -the tire to the rim and its removal therefrom,.the rel' moval of theJ flange making it unnecessary l to stretch the tireover the same. With this kind of a rim it is also possible to use a tire-having-inextensible selvages, such tires requiring no security bolts toretain theml in position and havingaccordingly come to be known in the trade as lquick-detachable Rims provided withm removable flanges and adapted to receive such tires Vare commonly known in .the trade as quickone well-known type of rim of this kind an endless'removable ange hasv been usedjthe flange being locked to the rim base or main tire-carrying portion of the rim lby means of la transversely split spring-locking ring,

the rim base being provided with a channel at one side thereof4 to receive'thislocking ring.\. In' 'another well-knownl type ofquick-detachable rim a transversely vsplit removable tire-retaining flange has been (used, the flange having a base lportion .fitting l bile makers and rim users have preferred one form of rim and some the other. As these rims have heretofore been constructed, it has been necessary vto provide rim bases with different shaped channelstherein for thetwo kinds of rims, and rim makers have therefore had to roll two distinct shapes for the two rims andhavealso had to keep in stock ycomplete sets of parts, including rim bases, for each kind of rim. It has also been necessary for rim dealers to carry two complete types of rim. By my present invention I have devised a rim in which the same rim base or main tire-carrying por!y I tion can be used with either type of rim, the channel at the side of the rim base being s0 shaped as to receive either `a transversely split tire-retaining iange or a transversely vsplit/locking ring adapted to hold an endless tire-retaining. flange in position. With my improved form of rim only one shape of rim base need be rolled or carried in stock by either the rim maker or dealer. All that is necessary for either the manufacturer or dealer to handle is a stock of rim bases of one yshape and the necessary,transversely vmost bulky `and costly'part of the rim.

' The nature of my improvements by which I attain the above objects will fully appear from the following detailed description. I

Ashave also shown in the.drawings and will describe certain improvements in demountablerim4 construction and certain improved tools for operating'demountable rims.

In the accompanying 4drawings which form Aa part of this specification, Figure l is aside elevation of a vehicle wheel having -one. formof my improved rim mounted thereon; Fig. 2 is a transverse sectlon on,

line II-II .of Fig. 1; Fig. 3 is a'` perspective view of a portion of Ya rim base of my improved form; Fig. 4 is a sectionon line IV-IV of Fig. l,.the anges of. the rim being shown in reversed position so as to retain a straight-sided ltire instead. of a clencher tire, this figure also illustrating an radial studs by which the rim is secured upon the wheel; Fig. 5 is ari/end viewtf :split iianges and endless flanges and flocking "rings to equip such rim bases, for either of ,improved form of tool for operating the the head of the moishown in Fig. i; Fig. e is a transverse section through a wheel felly,

rim, and the base of the t1re takenl at the, valve-stem, the rim -base being shown as,

5 equipped with-an endless removable tireretaining flange held in position by my improved transversely split locking ring, this endless flange and locking ring being substituted for the transversely .split tire-retaining flange shown in Figs. 1, 2 and 4;'

Fig. 7 is a side elevation of the parts shown in Fig. 6, a portion of the outer wall of the channel of the rim base being broken away; Fig. 8 is a view-'similar to Fig. 6, the section being taken at one of the radial studs and the endless tire-retaining flanges being shown reversed to engage a straightsided tire instead of va clenchen tire, this figure also showing a portion of another 2o form of tool for operating ltheradial studs;. Fig. 9 is a -viewsimilar to Fig. 7 but showing the endless removable tire-retainingflange and transversely split locking ring rey placed by a form of transversely split tireretaining flange having lugs at its ends :in-

terlocking in a slot'in the' rim base.

iReferring to the drawings'in detail, the

Jnumeral 1 designates 'a tire-carrying rim adapted to receive a pneumatic tire. This i v rim consists essentially. of a base or tiretire-retainlng j seating portion 2. havin flanges at each side thereo one of which flanges may be removed so as to permit the removal of the ti'e from the rim baseer ,its 35 application' thereto without stretching the beads of the tire over the fiange. The other flange-of the rim may or maynnot be re'- movable. Such second flangemay, for eX- ample, be integral with the r-im base.v I

i40. prefer, however, to provide a reversible tirereta'ining flange 3 retained upon the rim base by'an inwardly hooked fiange 4 formed in Fig. 2 placed upon the rim base with the side containing the clencher groove toward the tire, so as to receive a clencher tire, v'while in Fig. 4 I have shown this Harige re- .versed -so as' to enable a straight-sided tire 5 5 to be rngmunte'dy upon the rim. At the oppoly Wthgftheflange 4, I form al channel 5 prefer,- fnably byrolling .a depression in the metalv f 'withbutth'Ckening thev same, as this is much i j 'sideof the 'rim base from that provided 1L-69 theheapestwayto forni such achanneland also produce *a strong and light structure.

IThe -channel lmay,A however, be formed in ny' otherl' desired.injafnler.iA The channel omprises. an innerfwall 6,"a bottom 7, and

I j an outer wa11'8, the edge of the wall v84l being preferably of smaller diameter than that of theftire-seating surface of the rim base, as clearly shown in the drawings. In

Figs. 1, 2 and" 4 I h'aveshown mounted in the channel 5 a transversely'split reversible tire-retaining flange 10. The form of flange shown in these figures comprises an upper part or retaining fiange proper having in one side a clencher groove adapted to re ceive the bead pf the clencher tire, the other side being shaped to engage a straight-sided tire.l The fiange is shown in its two positions in Figs. 2 and-4, respectively. This upper part of the flange is mounted'upon a base 11 adapted to be received in the channel 5 and to engage the outer wall 8 thereof, such engagement holding the flange against lateral movement., The flange is preferably provided with the shoulders 12,

one of which is adapted to seat upon the edge -9 of the outer wall 8 of the channel.

The means for securing the ends of this split removable flange together may be of various forms; for example. in Figs. 1 and 2 I have shown the ends of the fiange pro-.

vided with lugs 13 having their adjacent l faces under-cut so as to provide' a recess for the IV-Shaped head of a bolt 14. The lugs 13 are received in a notch or slot 15 of the form shown in Fig. 3, they being retained in position by means of acap 16 which slipsover the lugs and is wedged upon the lugs by means of a nut 17 screwing on the threaded stem of the bolt 14. This form of lockingdevice is ful described in the patentv to Bryant, Numbe 912,537, dated February 16, 1909.4 I do not wish to limit myself,

however, to this formof locking device, as y I the transversely split flange may besecured in position in other ways; for example, the

flange may be provided with lugs adapted toint'erlck with a` slot in the rim base in the manner described in the 'patent to Shaw,

No.' 926,296, dated June 29, 1909. A Iflange having lugsfof this tvpev is shown applied to aA rim in Fig. 9. In this gure 18 is'the' transverselyl split tire-retaining flangehav-y ing at its ends the lugs 1 9v and 20. These lugs are received in the slot 21,"5 the form [of which is clearly illustrated in' Fig. 3.

This slot has a longitudinally offset portion 22 near the outerwall of the channel which l receives the lug 20, the latter having anextension 23 thereon which hooks'beneaththebottoml ofthe channel Aand holds the end-of movement. The slot 21 has another offset the flange carrying the lug20 agai'nstradial beingv preferably beveled.A as indicated" at 25. The lugy 19 is guided'bv the beveled' .wall v25l ,intothe offset portion24jof`the c'hannel'so as to bringthe extens'ipnv v26 of".

the lug under therbottom ofthe'channel as shown in Fig. 9. The lugs are then `locked usel 20 ends of to hold a bead of the tire pressed against in the portion of the slotk 21 nearest the outer wall of the channel, the lugs and consequently the flange being locked against circumferential movement and the ends of f the flange being held against radial movement. The unlocking of the flange is accomplished by moving the end of the same carrying the lug 19 awav from theouter wall of the channel, which permits the lug 'i0 -19 to be lifted out of the slot through the portion 24 thereof. The end of the rim is normally held against such lateral move- 'ment by the inflated tire upon the rim, the pressure of the inflatedtire being supplemented, if necessary, by the pressure of the vusual clip 27 carried on the end of the valvestem 28 as shown in Fig. 6. This clip serves the flange 18 and thus positively locking the the flange against lateral movement even though the tire become deflated. As will be obvious, the rim base may have formed therein either the slot 15 or the slot 21, as above described, although I may form as shown lin Fig. 3., If this is done the same rim base may be provided with'either the flange of the type shown in Figs. 1 and 2 or the ange of thel type shown in Fig. 9.

l 30 Ifthe flange of the'type shown in Fig-9 is vinto or vremoved from the offset portion of the slot 21. I'have shown the channel 5 wide enough to admit of this operation. yThe used, the channel 5 must be sufliciently wide to permit the end of the flange to be moved laterally sothatthe lug 19 may-be inserted 24 lchannel need nothave this eXtra. width 'if only the form of transversely split flange shown in Figs. l and 2 is to be used,

40 although the width of the channel is no objection. In fact, I may make use ofthe eX- tra width of the channel to provide a supportingsurface for the rim upon the wheel, as will be hereinafter described.

In Figs. 6, 7 and 8 I have shown the rim `base of the form shown in Figs. 1, 2, 3, 4-

and 9, provided with van endless removable tire-retaining flange held lin position by ay transverselysplit locking ring instead of with a transversely split tire-retaining flange.

As shown in these Figs. 6, 7 and 8, 30 is theendless tire-retaining flange which is preferable'reversible and may advantageously be Imade of the same section as the flange 3 at l the other side of the rim. Fig. 6 shows the` the tire-retaining flange 30 and holds th flange 30 engaging a clencher tire, whileFig. 8 shows it reversed and engaging a straightsided tire. 31 is the transversely split lock! ing ring fore retaining'the flange 30 upon yl: the rim base. The ring31 has a body portion seating in the channel-5, theflange 30 seating upon the cylindrical bearing surface 32 of this ring. rIhe ring 31 is provided with a flange 33 which extends up outside of.

latter against outward movement. By making the edge 9 of the outer'wall 8 of the `channel 5 of less diameter than thatbf vthe tire-seating surface of ythe rim base, as above described, it will be seen that a space is left between the under-surface of the flange 30 and the edge 9, the under-surface vof the flange 30 preferably being of the same diameter as that of the tire-seating surface of the rim.` This arrangement permitsthe flange 33 to be carried upon an eX- tension 34 of the locking ring, such eXtension passing between the edge '9 and the under-'surface of the' flange 30 and being supported by such edge. It is thus possible to carry the'flange 30 out over the edge of the wall 8 and to bring the tire-engaging portion of the flange 30 into the same location as the corresponding tire-engaging portion of the flange. 10 when the latter is used \upon the rim base, thus insuring a proper width of the rim channel4 to receive the tire.

25 in the rim base slots of both of said shapes ceived in a hole 36 formed in the bottom 7 of the channel 5 for the purpose of preventing creeping of the locking ring and to hold the end of the same stationary so as to facilitate its'application. The other end of the locking ring may be beveled'or undercut as indicated at 37, so as to permit a tool to be inserted under Said end for the purpose of prying the ring out of-its seat. The flange30 is secured in positionl by placing it againsttheside ofthe tire upon the rim, -pressing slightly, so, as to permit the flange 30 to be moved inward beyond its normal position, andl then springing the locking ring 31 over the wall 8v of the channel 5 and seating it in such channel. rlhe. flange 30 is then moved the beads of the. tire togetherlaterally outward overthe locking ring until 1t seats upon the seat 32 of the latter and' is l A held against further outward lateral move- 'ment by its engagement with the flange 33. The tire-retaining flange 30 being endless, A,now positively locks the transversely .split locking ring 31 against radial outward movement and thus prevents such locking ring from lcoming out of the channel 5. .The flange 30 is removed by reversing the above operations; 'that is', it is first moved laterally inward, the end of the tool is then inserted under the beveled end 37 of the locking ringand the locking ring. sprung out of the-channel 5. rIhe flange 30 and the tire are then free to be taken off. The inflated tire normally prevents the flange- 30 from moying inward so as to disengage the locking Vring'31, the'valve clip 27 preventing the flange from moving inward and releasing the locking ring, even though the tire becomes'- deflated. In order that the valve clip may be used both td prevent the inward e movement of the endless flangef30 and the 130 C the valve-stem 28, as shown in Fig. 3. The

valve clip will thus be located approximatelyopposite to either the adjacent ends of the split flange 18 or the ends of the locking ring 31, whichever may be used with the rimzbase.

. If lthe flange 30 is of the form shown, having the dovetail-shaped base 39, lone inclined v wall of which is formed by the toe of the side of the flange containing the clencher groove, while the other inclined wall is formed by rolling a groove 40 in the side of the flange designed to engage a straightsided tire below the curved surface 41 adapted to engage such tire, the flange 33'of the locking ring 31 which engages the basezof. the tire-retaining flange is preferably in` wardly hooked as shown.

The tire-carrying rim above described maybe permanently mounted upon a vehicle wheel in any suitable manner; for example, by being shrunk directly upon the Wooden felly thereof, or it may be removably secured to the vehicle Wheel in any suitable manner, thus providing a demountable rim structure. I have illustrated in the drawings one mode 0f removably securing the rim upon the wheel. As shown, .42 is the wooden felly of the wheel, 43 being the metallic felly band shrnunk thereon. This felly band v has an upwardly and outwardly extending flange 44-formed at one edge thereof, the periphery of this flange forming a rounded bearing surface45. The' other edge of the felly band is curved outwardly and downwardly to provide a convex rounded bearing z surface 46. If the channeh at the side of the tire-carrying rim is made wide, as above described, the angle between the inner wall 6 and the bottom 7 of the channel is preferably rounded and forms a convex bearing surface 47 which engages the bearing surface 46 lon the felly band. A second bear" ing surface 48 is formed on the under-side of the tire-ca-rrying rim, this surface being preferably formed by rolling `a shallow der pression 49 V in the rim lbase. The bearing surfaces 45 and 48 are of greater diameter than the bearing surfaces 46 and 47 at the opposite side of the wheel, this difference of diameter facilitating the application of the rim to the wheel and permitting the same to be freely operated with a less clearance between the wheel and rim than would be required if the bearing surfaces at the two; sides of the wheel were ofthe same di- .ameten- For causing the complementary bearing surfaces upon the wheel and rim to be brought into engagement, the rim may be moved laterally on the wheel by any suitable means, although I prefer to force it radially away from the wheel periphery at intervals in order to draw` the bearing surfaces of the rim upon the bearing surfaces. of the wheel between the points where the'rim is 'forced away from the wheel periphery. For thispurpose I provide a plurality of spacedstuds 50 extending radially through the wheel felly, thesestuds having 'l band. The ends of the stems 53 of the studs are preferably squared as indicated at 56, or otherwise suitably shaped for engagement by a wrench or tool for rotating the same. Lock-nuts 57 may be mounted upon the stems 53 of the studs, if'desired, these nuts serving to limit the o-utward movement of the studs and also to hold the same against working loose.

`The idea of usi-ng means such as radial studs for vforcing a r'im outward at intervals to cause the same to grip the wheel between the points where it is forced out is fully described by me and claimed broadly in certain applications which I have already sov filed; for example, my. applications Serial Number 668,771, filed December 30, 1911,I

and Serial Number 672,544 filed January 22, 1912, and no broad claims to this feature of construction are therefore made in the present case. Y

In Figs. 4 and 5 I have illustrated an improved form of tool or wrench specially adapted for operating the radial studs for securing the riIn upon the wheel. It will be seen that the locationof these studs is such that they cannot be operated by an ordinary brace wrench such as is commonly l'used for operating demountable rims, al-

though a wrench' of this nature is usually preferred by rim users, as it` permits the l very rapid 'operation of the fastening bolts ,or wedges. My improved to'ol comprises abrace wrench adapted to be held at an ani gle to that of the stud to 'be turned. This is accomplished inthe form of my invention illustrated in Figs.4 4 and 5 by providing beveled gearing for driving the wrench socket from the revolving brace.` As shown V- in these figures, 60 is the socket'member of thej wrench, this member having a socket 61 therein adapted to fit the head 56 of the stud, and also having a socket 62 therein for the lock-nut, if the latter is used. The socket member 60 is preferably mountedto rotate in a casing 63 and has, teeth formed thereon constitutinga beveled gear 64. 65 is the brace portion of the wrench, this being preferably provided with the usual handles 66 and 67. The shaftl 68 of the brace is the brace part of the Wrenc A erator in grasping the handles of the latter iaeoaea journaledin a bearing sleeve 69 projecting from the casing 68. The end of the shaft has fixed thereto the beveled gear 70. meshing With the beveled gear 64 on the socket member of the Wrench. vAs Will be readily understood, the rotation of the brace Will drive the gear 70, Which drives the gear 64 and consequently rotates the socket 4member ofthe Wrench, thus screwing or unscreWing the radial stud, depending upon the direcvtion in Which .the Wrench is operated. v lt Will be seen that the socket member of the Wrench is supported in rigid relation With so that the opto such portions, as is customary, the brace' thus being elongated and shaped in such.l a

Way as to be capable of easy operation in proximitv to a vehicle Wheel.

In FigyS I have illustrated amodified form of tool or Wrench for rotating the radial studs, the Wrench shoWn in thisfigure comprising a socket member 72 having sockets 7 3 and 74 therein for the reception of the head of the radial stud and the lock-nut,

respectively. The socket member 72 is connected to the brace member 75, only a portion of Which is shown, by means of a universal joint. n This maybe of any ordinary construction; foreXample,vthe end of the n brace may have secured thereto the-fork 7 6, in the arms of Which are journaled ther trunnions 77 of the block 78. A pin 79 passes through a'hole in the block 7 8, the axis of;l

the pin being at right angles to the aXis of the trunnions 77. being carried by arms 80 projecting. from the socket member i172. rlhesocket membeg 72 preferably has a groove 81 formed in its surface so that it may be conveniently grasped by the operator and held in engagement With the head of the stud, if this -is found necessary.

Having thus described certain preferred embodiments of myinvention, but Without desiring tolimit myself to the detailsI set. forth any further than as specied 1n certain of the more limited claims hereunto apf,

pended, l claim:

1. A vehicle Wheel rim comprising a tireseating member having a tire-retaining flange at one tions formed inthe opposite side thereof,

one of said locking portions consistingof an the ends of Vthe pin 79I sidethereof, and locking por-y` irregularly shaped opening for receiving flange and the other of said locking por-f tions comprising a slot for receiving an engaging member of a split locking ring.

2. .A vehicle Wheel rim comprising a base portion having a tire-retaining flange at one side 'thereof and a channel at the other side,` a locking portion in said channel consistingl of an irregularly 'shaped opening forpreceiv-y ing an engaging member of a split tire-retaining flange, .and a second opening having an oEset portionv adapted to engage a split locking ring.

3. A vehicle Wheel rimcomprising a tireseating member having a tire-retaining flange at one side thereof and a channel at the other side provided With slots adapted to receive interchangeably a transversely split tire-'retainingifiange and a transversely split locking ring adapted to hold in po# vsition an endless tire-retaining-fiange, one

of said slots extending inWar y from the edge of the rim, the edge of the slot consti- 'tuting part of the rim edge.

4. A vehicle Wh'eelrim comprising a tireseating member having av tire-retaining flangev at one sidethereof and a channel at the other sidev adapted to` receive interchangeably a vtransversely split tire-retain` ing "flange, and an endless tire-retaining flange. adapted to be heldin position by aA transversely split locking ring,

being Wider than either said transversely split flange or said locking ring.

5.1m a vehicle. Wheel rim a tire-seating member having a channel at one Sidethereof adapted to receive a tire-retaining 'flange and a locking ring, the edge of the outer Wall of said channel being of sufficiently less diameter than the diameter of the tire-seat- /ing surface of the. tire-'seating me' ber to permit the seating thereon of the tire retaining flange and the locking ring. j, Y

.6. In a vehicle Wheel rim, the combination of a tire-seating member having aly channel formed at one side thereofadapted to re-l an engaging member of split tire-retaining L 'said channel ceive a tire-retaining flange and a locking ring, and a transversely split tire-retaining flange having a base portion adapted to be. seated in said channel, said flange having a f 1 shoulder `adapted to engage the edge ofthe outer Wall of saidchannel, the diameter of the edge of the outer Wall of said channel y being. sufficiently less than that of the tireseating surface of said tire-seating member to permit the seating thereon of said flange and the locking ring. j. j

7. ln a vehicle Wheel rim, the combination of a tire-seatingmember having a channel formedat one side thereof, the diameter of the edge of the outer Wall of said channel being less than thefdiameter of the tireseating surface of said tire-seating member,

an endless reversible tire-retaining flange,

. the diameter yof the inner surface of which is greater than the diameter of the edge of the outer -Wall of the ,channel, and a transversely split locking ring for retaining said endless flange upon the tire-seating'member of the rim, said locking ring having a base adapted to seat in said channel. and having an extension portion extending from said base between'the edge of the outer wall of the channel and the inner surface of the flange for a major portion of its width, said extension carrying an upwardly projecting flange engaging the side of said endless tireretaining flange in either its normal or reverse position and retaining the same against outward movement. y

8. In a vehicle wheel rim, the combination of al tire-seating member' having a channel at one side thereof., an endless reversible tire-retaining flange having a clencher groove in one side thereof and having a convex annular bearing surface at lthe\ other side thereof adapted to engage a straight-sided tire, and having an annular groove formed below said convex bearing surface, the lower wall of said groove hav ing an inclination equal but opposite to that of the surface of the lower portion of" the opposite side ofthe flange, and a transversely split locking ring for securing said flange upon said tire-seating member,I said ring having a base adapted to seat in said.

channel, and an inwardly inclined flange adapted to engage the 'inclined surface upon the exposed side of said endless tire-retaining flange.

9. A tire-carrying rim having a depressed channel at one side thereof, provided with la slot lying wholly within saidchannel, .and a second slot extending from a point within said channel to the edge of said rim.

10. Atire-carrying rimhaving a central tire-seating portion anda depressed channel at one side thereof, provided with a slot vlying wholly within said channel, and a sec-A ond slotl extending from a point Within said channel to the edge of said rim.-

11. demountable rimlhaving. at one side -of the base' thereof an opening of irregular outline adapted to lock a transversely split tire-retaining flange and a second openingv of substantially regular outline in the base l lof said .rim circumferentially spaced from the first mentioned portion adapted tol engage a transversely split locking ring for an endlessptire-retaining flange.

12. A demountablel rim having at one side a depressed groove with an offset slot therein, and with a `second slot formed in the outer wall of said groove, the former adapted to engage a split tire-retaining flange,'

and the latter adapted to engage a split locking ring for an endless tire-retaining` flange.

13. A demountable rim for resilient tires comprising a, base portion, a tire-engaging flange at oneside and an off-set depressed flange at the. other side adapted to receive and retain successively a split tire-engaging flange and a'split locking ring for an endless tire-engaging flange.

14. Aldemountable rim forresilient tires comprising a base portion, means for retaining a transversely split tire-retaining flange comprising a slot in said base portion having an offset part and a notch in the base portion extending from theedge of the rim` inwardly, said slot-and said notch serving to hold interchangeably a split-tire-retaining means comprising an offset slot, and at' the edge of said rimuadjacent the first-mentioned slot a second engaging means com-- prising a slot, the-first-mentioned slot being adapted to engage a split tire-retaining r ange and the second-mentioned slot being adapted to engage a split locking ring for an endless tire-retaimng ange.-

' JAMES n. wAGENHoRsrr.

Witnesses SEWARD DAVIS, EDMUND QUINGYMosEs. 

